Collapsible tube



Aug. 4, 1936.

F. W. TODT ET AL COLLAPS IBLE TUBE Filed March 12, 1935 Sumo/um Fl Vilham Tod? JHarr Bron 22in 4 I 7 7 Patented Aug. 4, 1936 UNITED STATES PATENT OFFICE I Application ml; 12, 1925, Serial No. 10.708

o. claims (01. 221-) f This invention relates to a collapsible tube or container for tooth paste or other similar products, and has for its object to provide, in a manner as hereinafter set forth, a tube of the class referred to. of a single piece of stock and of a construction whereby the peripherally threaded neck and closure cap now generally employed are dispensed with, whereby a material saving in cost of manufacture is had.

Further objects of the invention are to provide, in a manner as hereinafter set forth, a tube of the class referred to which is simple in its con struction, compact, conveniently opened when "for the tube.

occasion requires, durable, readily collapsed when opened for expelling the contents therefrom and inexpensive to manufacture. V a To the above ends essentially and to others which may hereinafter appear, the invention consists of such parts and such combination of parts which fall within the scope of the invention as claimed.

' In the drawing:

Figure 1 is a front elevation of the sealed,

Figure 2 is a side elevation, partly in vertical section, of the tube when sealed,

Figure3isaviewsimila'rtoFlgure2wlththe seal at the outlet end of the tube removed.

Figure 4 is a top plan view of the tube, 1111 1: an enlarged scale,'showing the outlet seal therefor, Figure 5 is a top plan view of the tube, upon an enlarged scale, with the outlet seal removed,

Figurefi is a fragmentary view, in side elevation and upon an enlarged scale, looking towards one end of the outlet seal for the tube.

Figure 7 is a sectional detail, in plan. illustrating a modified form of neck,

Figure 8 is a fragmentary view, in front elevawhen 7 tion and upon an enlarged scale, illustratinga modified form of outlet seal, 7

Figure 9 is a vertical sectional view illustrating still another modified form of outlet seal for the container, and

Figure 10 is a fragmentary view in side eleva- I tion illustrating still another modified form of outlet seal for the container.

.Thetubeis formedfromasingle pieceofstock said closure and seal parts are integral ,with the tube. The body part 9 is formed of a portion i4 of circular cross section and a portion l5 of flared tapered contour. The portion I 4, at its forward end, merges into the rear end of the breast part ill.. The portion I4, at its rear end, merges into .the forward end of portion IS. The breast part I0 is of frusto-conoidal contour and merges at its forward end into the rear end of neck part It. s. The latter is formed with a circular portion l6 and a portion H which is flared in front and rear elevations (Figures 4 and 5) and of tapered contour in vertical section (Figures 2 and 3) to form an elongated narrow outlet I8 (Figure 5) when the outlet seal i3 is severed from the neck part II. The rear and forward ends of portion l6 merge respectively into the forward end of breast part It) and the rear end of portion I'I.

The rear end of portion l5 of body part 9 merges into the forward side of bottom closure i2. The forward end of portion I! of the neck part II merges into the rear side of the outlet seal l3. The closure I2 is provided by overlapping and compressing, in close relation, parts l2 of the material forming the tube at the rear end of body part 9 The outlet seal. I3 is provided by overlapping and compressing, in close relation, parts of the material forming the tube at the forward end of neck part II. The parts of ignated I9, 20 and 2! and are secured together by sets of spaced transverse crimps 22. The part I! is the central part of seal l3 and is arranged between and extends rearwardly from the parts the material forming the outlet seal l3 are des- 20, 2|. The part i9 is adapted to be severed to ing lengthwise thereof.

With reference to Figure 9, the construction o t eta of 88 8 which be ild ihown thereby consists of providing the outlet seal shapedand bent to form the complete tube and also of a gauge to permit severing the outlet seal With reference to Figures 1 to 6, the tubeincludesabodypart 9,abreastpart ll,aneiongated neckpart ii, abottom closure i2 ands aeverableoutletsealltofobloneeontou. The

26 at the outer end of the elongated neck 21 by drawing, from thexoufei end of the neck, opposed The neck, inwardly of and in close proximity to the seal 26, is capable of being severed to remove the outlet seal when it is desired to conveniently expel the contents of the container by collapsing the body part 9. Otherwise than as stated, the container shown in Figure 9 would be the same as that disclosed by Figures 1 and 2.

With reference to Figure 10, the form of outlet seal 30 shown thereby is the same as that shownin Figure 9, with the exception that the outer end edges of the portions 28, 29 are connected together by any suitable means, as at 3|, whereby a closure is provided.

It --is..furthermore to be understood that at the point of joinder of the outlet seal with the neck, such part of the container may be weakened in any suitable manner to permit the outlet seal to be readily removed when desired.

What we claim is: 4

1. A collapsible tube comprising a single integral unit formed of an elongated body part having inherent portions thereof closing its rear end,

a frusto-conoidal breast part merging at its inner end into the forward end of said body part, an elongated neck portion merging at its rear end into the forward end of the breast part, said neck portion having the major portion of its length of uniform and of relatively small diameter with respect to said body and breast parts, the remaining part of the length of said neck portion consisting of a hollow tapered stretch merging into a hollow flared stretch merging into a flat forward closed stretch of oblong contour, said flat stretch aligning at its sides with the sides of said flared stretch at the forward end of the latter, said flat stretch formed of overlapped abutting inherent portions of said unit and providing a seal capable of being severed from the unit at the outer end end of said flared stretch and thereby provide an outlet for the tube. I

2. A collapsible tube comprising a single integral unit formed of an elongated body part having inherent portions thereof closing its rear end, a frustoconoidal breast part merging at its inner end into the forward end of said body part, an elongated neck portion merging at its rear end into the forward end of the breast part, said neck portion having the major portion of its length of uniform and of relatively small diameter with re- 8 spect to said'body and breast parts, the remain- "ing part of the length of said neck portion consisting of a hollow tapered stretch merging into a hollow flared stretch merging into a flat forward closed stretch of oblong contour, said flat stretch l0 aligning at its sides with the sides of said flared stretch at the forward end of the latter, said flat stretch formed of overlapped abutting inherent portions of said unit and providing a seal capable of being severed from the unit at the outer end 5 of said flared stretch and thereby provide an outlet for the tube, said flat stretch being formed at its lengthwise median with a crimp for securing said abutting inherent portions together.

3. A collapsible tube comprising a single inte- 20 gral unit formed of an elongated body part having low flared stretch merging into a flat forward closed stretch of oblong contour, said flat stretch aligning at its sides with the sides of said flared stretch at the forward end of the latter, said flat 35 stretch formed of abutting inherent portions of said unit and providing a seal capable of being severed. from the unit at the outer end of said flared stretch and thereby provide an outlet for the tube. 40 FREDERICK W. TOD'I'.

J OHN H. BROWNING. 

